Actions: Add integration test for default filter behaviour

Include a reachable workflow, and several unreachable workflow files.
Include action metadata files at various depths, all reachable.
This test exercises the default filters when the user doesn't
specify paths/paths-ignore.

actions/ql/integration-tests/filters-default/actions.expected

@@ -0,0 +1,4 @@
+| src/.github/action.yaml:1:1:11:32 | name: ' ... action' |
+| src/.github/actions/action-name/action.yml:1:1:11:32 | name: ' ... action' |
+| src/.github/workflows/workflow.yml:1:1:12:33 | name: A workflow |
+| src/action.yml:1:1:11:32 | name: ' ... action' |

actions/ql/integration-tests/filters-default/actions.ql

@@ -0,0 +1,5 @@
+import actions
+
+from AstNode n
+where n instanceof Workflow or n instanceof CompositeAction
+select n

actions/ql/integration-tests/filters-default/src/.github/action.yaml

@@ -0,0 +1,11 @@
+name: 'A composite action'
+description: 'Do something'
+runs:
+  using: "composite"
+  steps:
+    - name: Print
+      run: echo "Hello world"
+      shell: bash
+
+    - name: Checkout
+      uses: actions/checkout@v4

actions/ql/integration-tests/filters-default/src/.github/actions/action-name/action.yml

@@ -0,0 +1,11 @@
+name: 'A composite action'
+description: 'Do something'
+runs:
+  using: "composite"
+  steps:
+    - name: Print
+      run: echo "Hello world"
+      shell: bash
+
+    - name: Checkout
+      uses: actions/checkout@v4

actions/ql/integration-tests/filters-default/src/.github/unreachable-workflow.yml

@@ -0,0 +1,12 @@
+name: An unreachable workflow
+on:
+  push:
+    branches:
+      - main
+
+jobs:
+  job:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout code
+        uses: actions/checkout@v4

actions/ql/integration-tests/filters-default/src/.github/workflows/workflow.yml

@@ -0,0 +1,12 @@
+name: A workflow
+on:
+  push:
+    branches:
+      - main
+
+jobs:
+  job:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout code
+        uses: actions/checkout@v4

actions/ql/integration-tests/filters-default/src/action.yml

@@ -0,0 +1,11 @@
+name: 'A composite action'
+description: 'Do something'
+runs:
+  using: "composite"
+  steps:
+    - name: Print
+      run: echo "Hello world"
+      shell: bash
+
+    - name: Checkout
+      uses: actions/checkout@v4

actions/ql/integration-tests/filters-default/src/unreachable-workflow.yml

@@ -0,0 +1,12 @@
+name: An unreachable workflow
+on:
+  push:
+    branches:
+      - main
+
+jobs:
+  job:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout code
+        uses: actions/checkout@v4

actions/ql/integration-tests/filters-default/test.py

@@ -0,0 +1,2 @@
+def test(codeql, actions):
+    codeql.database.create(source_root="src")